Ring Wads are Leak Proof Seals Applied with Induction Heating. They are Used to Seal Pp, Hdpe or Glass Bottlesjars Containing Liquids, Tablets Etc. or Powders. in Holo Induction Seals Holographic Film is Laminated with Aluminium Foil to Provide Security and Authenticity to the Seal in Addition to the Normal Sealing Capability.